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Let θ (in radians) be an acute angle in a right triangle and let x and y, respectively, be the lengths of the sides adjacent to and opposite θ. suppose also that x and y vary with time. at a certain instant x=9 units and is increasing at 9 unit/s, while y=5 and is decreasing at 19 units/s. how fast is θ changing at that instant?
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Let θ (in radians) be an acute angle in a right triangle and let x and y, respectively, be the lengt...
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